Q$5$: $[20$ points$]$ SOLVE IT using Energy coservation and Momentum Conservation and Continuuty Formulas only!

$3\mathrm{.}18.$ Seawater $(=64lb\frac{m}{f}{t}^3)$ flows through the reducer shown in Figure P$3\mathrm{.}18$ with $p_1=50g.$ The flow losses between the two sections amount to $h_l=5\mathrm{.}0ft-lb\frac{f}{l}bm.$

$($a$)$ Find $V_2$ and $p_2.$

$($b$)$ Determine the force exerted by the reducer on the seawater between sections $1$ and $2.$